✨ Entry with TextMarshaler

models/entry.go

@@ -1 +1,72 @@
 package models
+
+import (
+	"bytes"
+	"errors"
+	"strings"
+	"sync"
+	"time"
+)
+
+const DateFormat = "January 02, 2006 at 03:04:05PM -0700"
+
+type Entry struct {
+	Title  string
+	Date   time.Time
+	Fields []Meta
+}
+
+type metaRes struct {
+	out []byte
+	err error
+}
+
+func (e Entry) getFieldMarshalChan() chan metaRes {
+	size := len(e.Fields)
+	ch := make(chan metaRes, size)
+	var wg sync.WaitGroup
+
+	// @todo figure out a way to handle json field
+	for i := 0; i < size; i++ {
+		wg.Add(1)
+		go func(i int) {
+			defer wg.Done()
+			o, er := e.Fields[i].MarshalText()
+			ch <- metaRes{o, er}
+
+		}(i)
+	}
+
+	go func() {
+		wg.Wait()
+		close(ch)
+	}()
+	return ch
+}
+
+func (e Entry) MarshalText() ([]byte, error) {
+	e.Title = strings.TrimSpace(e.Title)
+	if e.Title == "" {
+		return []byte{}, errors.New("Empty title")
+	}
+	if e.Date == (time.Time{}) {
+		return []byte{}, errors.New("Empty date")
+	}
+	ch := e.getFieldMarshalChan()
+	buff := &bytes.Buffer{}
+	buff.WriteString("@begin ")
+	buff.WriteString(e.Date.Format(DateFormat))
+	buff.WriteString(" - ")
+	buff.WriteString(e.Title)
+
+	for res := range ch {
+		if res.err == nil && len(res.out) > 0 {
+			buff.WriteString("\n")
+			buff.Write(res.out)
+		}
+	}
+
+	buff.WriteString(" @end")
+
+	return buff.Bytes(), nil
+}